Turbine pumping mechanism.



No. 656,465. Patented Aug. 2l, |900. l F. MARBURG7 JR.

TURBINE PUM'PNG MECHANISPH.

(Application md Apr. so, 1900.)

llllnmmnu` 1 mllllllllll HH' (fanuyeffflgemef BY i Y f M ATTORNEY l No.656,465. Patented Aug. 2|, |900.

r F. MARBURG, 1n.

` (Application Sled Apr. 30, 1900.)

-wlTN.EssEs:

INVENTOR M Umwow W 07 S/V7 ATTORNEY No. 656,465. Patented Aug. 2|, i900.F. MARBURG, 1R. TURBIHE PUMPING MECHANISM.

(Application filed Apr. 30, 1900.)

3 Sheets-Sheet 3.

INVENTR 'i my? @MMX ATTGRNEY FRANZ MARBURG, JR.

PATENT OFFICE.

,0F NEW YORK, N. Y.

TURBINE PUMPING MECHANISM.

' `srscxFIcArIolv forming part of Letters Patent No. 656,465, datedAugust 2l, 1900.

pplication filed Api-ll 30, 1900. Serial No. 14,848. i (No model.)

-l'o1 `all 'who/n it nuty conoci-1u y Be it known that I, FRANZ MARBURG,Jr.,

. a citizen of the United States, residing in the boroughof Manhattan,in the city,

county, andStaL-e otNew `York, have invented cer taiunew and usefulImprovements in Turbine Pumping Mechanisms, of which the following` is-aspecification. i

This invention relates to the class of .tur bine` mechanisms, such asforce-pumps, for elevating a column of water. A typical mechanism ofthis character embodied in an axialfilow `turbine is illustrated in theUnited States Patent No. 647,856, granted to me ,foravoiding end. thrustor, in other words,

1the eduction side of April 17, 1900, and reference may be had t0thisfpatent ter a fuller understanding of the construction andarrangement of the turbines andihei'r iixed guides, th'emeans employedon the turbine-shaft, and the requirement It may be said here, however,that where a pump of Vthis character is required to lift waterorother:Huid against a head or pressure, where the pressure is greater at thecduction side than at the induction sideof the pump, it is necessary atstarting` to set up a current or flow through the apparatus before ahead or pressure at the pump can be over-` come, `and in orderbefore-mentioned patent is shown .an automatically-operated relief-valvewhich opens the eduction side of the pump in a manner sito avoidmaterial pressure or resistance to the flow until acurrent with sulcientvelocity shall have been established, after which Y the -valve graduallycloses.

In the present construction in lieu of re- `-`lievingthe pressure at theeduction side of the pump the .object is tc counterbalance orovercom'ethisfpressure by the admission inil tiailyof duid underpressureat the induction side of tl r pump.

Several embodiments of the invention are illustrated in the-accompanyingdrawings,

wherein-'- Figure -1 is a sectional elevation of one form i ofrthe pumpilshowing a pressure-tank and A manual control.

sfo

Fig, 2 is a similar view, Ibut showing automatic control.v Fig;'3 is asimilar view showing a construction with autouraine'V control where thecounter-pressure for relief at starting. -l

to accomplish this in my on the induction side is obtained from a duidunder a head or 'pressure from any source. Fig. 4-is a similar Viewshowing counter-pres sure under manual control similar to Fig. 3 and inaddition a relief-valve on the eduction side of the pump. Fig. 5 shows aconstruction where the counter-pressure is supplied from a tank which isitself supplied by the pump.

For the ,reasons already sta-ted it has not been deemed necessary toshow the specific construction ofthe interior of the pump.

My present invention is not specifically limit-ed to any particularconstruction of the in my before-mentioned patent will serve.

In the construction herein shown l is lau outer casing into which theliquid flows or is drawn through the induction-inlet 2. From #theannular chamber 3 in the casing the liquid iiows into the ends ofan'inner cylinder 4, fixed inthe casing 1 and containing the turbines5on their shaft 6. Preferably there will be two sets of these turbines,each set having iixed guides, all as clearly shown in my said foi'merpatent. The liquid taken in -at the ends of the cylinder 4 will bedischarged ata central eduction-outlet 7.

So far as described above the pump has no features of novelty over thatin the said patent.

. Referring now to Fig. l, 8 is a closed pressure-tank, and 9 is abranch pipe connecting the eductlon sideof the pump with said tank. Apipe 10 cpnnects the tank 8 with the in the turbine suicient to overcomethe pressure at the discharge,`

and when this current be gradually closed.y Ifliave shownjclrikvalves 12in thlseverai'pipes; rbut theseare,

shall have been .established the' valve 11 will' turbine mechanism andthat fully illustrated duction side of the pump, and iu it is a manuleduction side of the pump and permits the" V4astaa.blish|11ent of acurrentaxially through :ca

well-known `featuresand form no part of my invention. A check-valve maybeplaced in any one of the pipes of the apparatus or pump where it isneeded.

`Fig. 2 shows the same construction as that illustrated in Fig. l,except that the valve 1l is replaced by au automatically-operating valve13, which is normally'open and closes automatically when a current shallhave been ro established through the pump. This valve is in the form ofa hollowpiston mounted to move up and down in a casing 14 fand pro-`vided with oppositely-arranged contracted ports 15, through which theliquid from the '-15 tank 8 flows to the induction side of lthe pump.Thevalve 13 has lugs 16, these lugs being supp'orted,"when` the valve isopen, on ashou'lder in the casing. The casing, above the valve isconnected with the induction zo iside of the pump by a pipe 17,"havingin ita valve 18, whereby' a regulabley `resistance. to

y lclosing of the valve is providedv and the latter is caused to closegradually. When a cur- ."r'ent is established through the pump, the z5'pressure in thechamber 3wil1` be reduced,

and owingto the contracted character vof the v ports 'in' the valve 13the pressure under the latter will be greater than that above it, sothat it will rise and close the ports l5, thus 3o cutting oi the'iio'wof liquid from the pressure-tank to the induction side of the pump. Eig.3 illustrates a construction which, zis

- the same as that seen in Fig. 2, except that in theconstruction ofFig. 3 the' pressure- 3,5 tank 8 and vthe supplying branch pipe 9 are'-omitted andthe pipe 10 is "to be supplied "from any source where thereis a head-for example, from astreet-ma'in' if the pressure .therein issuitedto thepurpose. "lhe'auto- 4o `matic valve device illustrated inthisview is the same as thatshown in Fig. 2.k

' The construction shown inFig. llis the same I as that seenin Fig. 3,except that the pipe .10?

fromthe main or othersource of liquidunder pressure and whichcorrespondsto the pipe Y 10 of Figs. l, 2, and' 3 is rprovided-with a.manually-operatable valve'll, like that 'of Fig. l, and there" is arelief-valve 19 at the eductionfside of the pump to assistinfrelie'v- 5oing the pressure. As avariant from the construction illustrated' in myformer patent thefpipe 17 from the tcp of the valve-casing .leads to an"elevated part cfa Waste-outlet 'pipe QOandnotto the induction side 'of'the pump. "l The' object of this connection is toV `insurethemaintcnance of liquid above "the valve in the casing. The operationof such a relief-valve is'fully explained in my former A.patent andIneed not berepeated here.

yiuga tank under .pressure-#as those used toloperate elevators', forexample-411e' construction shownin Fig. f5. may be employed;lnthisfigure', 2l is the tank, which is `connected directlyvvith th'elednction-pipe'Z 'ofl the pump. The pipe l0 connects this 'tank with-theinduction sideot i ihepump, so that the pressure within the pump isbalanced, as'the automatic valve controlling the pipe 1D will benormally open. 1

This valve will graduali close, however,

when a current shall ha been established through the pump. Obviously`this form of the apparatus might have a manually-operatable valve 1lyinlieu of the automatic valve, ifdesircd. 1

The pump illustrated herein and that shown in my former patent areaxial-liowturbines; but the same requirements exist in radial-dowturbines as well-that is to say, a current must .be established throughthe turbine before pressure can be overcome at the eduction Y side ofthe apparatus.

mechanisms and valso to anyI force-pump driven `by an electric motor orgus-engine where it 1s. necessary for the motor to get'upA speed beforethe load is thrown on.

My improvements'tre applicable to both of these classes of turbine.

It will be understood that by back pressure at-the eduction side of thepump 3 is meant a considerable or material back pressure. Tlie pumpwould at starting overcome a slight pressure due to friction in thepassages and the like.v y f `Having thus described my invention, Iclaim--- f 1. A pump having controllable. means for admitting a iiuidunder pressure'or head to its 'induction side to wholly or partiallycounterbala ce the normalexcess of back pressure at the e uction sidethereof.

' 2. A pump having automatically-controllable. means ,for admitting afluid under pres sure or head to itsrinduction side to wholly orpartially counterbaiance .the. .normal excess of back pressure. at Vthe'eduction sido thereof. i

3.A turbine pumping mechanism having controllable means forradmitting afluid under pressure or headto its induction side to wholly or partiallycounter-balance the"norv mal excess of back pressureat theeducticn sidethereof. c

4.. A turbine pumping mechanism having automatically-controllable meansfor admitting a fluid under pressureor headto its induction' side toAwholly or partially counterbalance lthe normal excess of hack pressureat the educti side thereof. l

5l An axia -fiow turbine pumping mechanism having controllable. meansfor admitduction-inlet. for iuirnittine.r a Iuid under S. Th@combination Wth. the pump, Gf n, premium-tml; mm1-eem@ Wim both h@ mmtion and edxcton Sides of Hx@ pump, and a aanvulling-valve between themi@ "mak and #fue induction siii@ of the pump, Whexraby bbw w' How fromthe zmk, may be cutoff a@ the propel 9. The combination with ith@ pump,of a prossme-mnk conuectef with both the indue-- tion m eaiwtion aidesof the pump, and fm automatic outrollngmlve btween the mid muli and beinduetion Sid@ of the pump, Wheeby the ow from the mul; may b@ cui;

;'n Witness whereof my@ hermmto my nam@ @his 25H1 day f Aprll, 1900, inthe PETm-, Ros/s, HENRY CONNETT.

